*{
    padding: 0;
    margin: 0;
}
div{
    width: 1080px;
    height: 200px;
    border: 4px dashed palevioletred;
    border-width: 6px;
}
dl{
    background-image: url(../image-1/tushansusu.webp);
    width: 200px;
    height: 200px;
    margin-right: 20px;
    text-align: center;
    float: left;
    background-size: 200px 200px;
    font-weight: 600;
    font-size: 25px;
    color: gold;
}
.one{
    background-image: url(../image-1/tushansusu2.webp);
    margin-right: 0;
}